The only companies larger right now are Microsoft, ExxonMobil and Wal-Mart.

One other thing to consider – it all started with a device shaped like a deck of cards that was created to compete with the Sony Walkman – The iPod. Think of how many millions of devices sold as a direct consequence of the triumph and mass adoption of iTunes and the iPod. The dollar value created on the back of that product pairing is absolutely mindboggling.

For the details of who stands where by market cap, click the link below.